Have you ever been confused with all the different kinds of cotton sheets out there? All the labels touting thread count, percale, and Pima. It can be confusing.
For me, I'm all about soft, smooth sheets and I couldn't care less about wrinkles. They get wrinkly when you sleep on them anyway. Other people like sheets to feel crisp and, for some reason I shall never understand, feel the need to iron them. So how can you know what you're getting before you buy?